3Com 5500G-EI Command Reference Guide - Page 130

130 CHAPTER 5: USING NETWORK PROTOCOL COMMANDS Parameters port Enter the ID of the UDP port with relay function to be enabled, in the range of 1 to 65535. dns Domain name system, corresponding to UDP port 53. netbios-ds NetBios datagram service, corresponding to UDP port 138. netbios-ns NetBios name service, corresponding to UDP port 137. tacacs TAC access control system, corresponding to UDP port 49. tftp Trivial file transfer protocol, corresponding to UDP port 69. time Time service, corresponding to UDP port 37. Description Use the udp-helper port command to configure the UDP port with relay function. Use the undo udp-helper enable command to remove the configuration. Example To configure the UDP port with relay function as the UDP port corresponding to DNS, enter the following: system-view System View: return to User View with Ctrl+Z. [SW5500]udp-helper port dns udp-helper server Syntax udp-helper server ip-address undo udp-helper server [ ip-address ] View VLAN Interface View Parameter ip-address Enter the IP address of the destination server. Description Use the udp-helper server command to configure the relay destination server. Use the undo udp-helper server command to delete the relay destination server. By default, no relay destination server is configured. Related command: display udp-helper server. Example To configure the relay destination server with IP address 192.1.1.2, enter the following: